SANG YONG JI, M.D.
Clinical Cardiac Electrophysiology Physician in TORRANCE, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
SANG YONG JI, M.D. filed 4,932 Medicare Part D claims in 2023 as a Clinical Cardiac Electrophysiology Physician in TORRANCE, California.
- 5K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
SANG YONG JI, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
4,932 Top 6% higher than 94% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
SANG YONG JI, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about SANG YONG JI, M.D.?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Clinical Cardiac Electrophysiology Physician compares to other specialties among California providers
Clinical Cardiac Electrophysiology Physician share within California
Clinical Cardiac Electrophysiology Physician is one of the more visible NUCC categories in California
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Clinical Cardiac Electrophysiology Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Clinical Cardiac Electrophysiology Physician ABMS/AOA estimate
Est. board-certified rate (Clinical Cardiac Electrophysiology Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Clinical Cardiac Electrophysiology Physician US NPIs
Specialty board-certified rate — Clinical Cardiac Electrophysiology Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
SANG YONG JI, M.D. appears in the CMS NPPES registry as a Clinical Cardiac Electrophysiology Physician provider holding M.D. credentials at 2841 LOMITA BLVD, TORRANCE, CA, 90505, with a listed phone of (310) 257-0508. NPI 1538354402 was issued on 09/13/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 4,932 prescription claims written by this provider, covering 772 Medicare beneficiaries and totaling roughly $1.7 million in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
Clinical Cardiac Electrophysiology Physician is a narrow specialty nationwide, with 1,570 enrolled providers across 52 states and an average of 1,596 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1538354402 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/13/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm SANG YONG JI, M.D.'s current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where SANG YONG JI, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) — CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SANG YONG JI, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$826
Largest payer
Medtronic, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context — California MBC 2023 annual report
Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to SANG YONG JI, M.D.. To verify SANG YONG JI, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 12,847
- Total Day Supply
- 382,476
- Generic Drug Cost
- $112K
- Antibiotic Claims
- 59
Patient Demographics
- Average Patient Age
- 79.1 years
- Avg HCC Risk Score
- 2.18
- Gender Split
- 45% female / 55% male
- Age Distribution
- <65: 14, 65-74: 222, 75-84: 315, 85+: 221
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What SANG YONG JI, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
863 claims
- Metoprolol Succinate
Metoprolol Succinate
481 claims
- Atorvastatin Calcium 345
Atorvastatin Calcium
345 claims
- Xarelto 305
Xarelto
305 claims
- Carvedilol 283
Carvedilol
283 claims
- Furosemide 237
Furosemide
237 claims
- Nifedipine Er 194
Nifedipine Er
194 claims
- Amlodipine Besylate 163
Amlodipine Besylate
163 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 863 |
| Metoprolol Succinate | 481 |
| Atorvastatin Calcium | 345 |
| Xarelto Rivaroxaban | 305 |
| Carvedilol | 283 |
| Furosemide | 237 |
| Nifedipine Er Nifedipine | 194 |
| Amlodipine Besylate | 163 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 155 |
| Losartan Potassium | 148 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Cardiac Electrophysiology Physician Overview
How SANG YONG JI, M.D. fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.
SANG YONG JI, M.D.'s 4,932 claims are above the specialty average of 1,596.
Nearby Clinical Cardiac Electrophysiology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as JI.
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology